Toys, Games and Hobby Products Design Green Science Arouse environmentally friendly concept by 4M Industrial Development Limited As young minds learn and develop, 4M feel it is imperative that they become increasingly aware of important world issues, such as the environment. The Green Science series aims at teaching children to develop green habits at an early age and making learning about the environment in a fun way. To encourage awareness among children, each product contains interesting recycling tips and fun facts which can be applied in their daily lives and to arouse their curiosity to explore the environment.